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Negative Differential Resistance of Electrons in Graphene Barrier

Daniela Dragoman·Mircea Dragoman
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Abstract

The graphene is a native two-dimensional crystal material consisting of a single sheet of carbon atoms. In this unique one-atom-thick material, the electron transport is ballistic and is described by a quantum relativistic-like Dirac equation rather than by the Schrodinger equation. As a result, a graphene barrier behaves very differently compared to a common semiconductor barrier. We show that a single graphene barrier acts as a switch with a very high on-off ratio and displays a significant differential negative resistance, which promotes graphene as a key material in nanoelectronics.

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Daniela Dragoman, Mircea Dragoman. 2007-01-02. Negative Differential Resistance of Electrons in Graphene Barrier. https://arxiv.org/abs/quant-ph/0701011

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